Matsudo Velodrome

About

Matsudo Velodrome (Matsudo Keirinjyō) is a velodrome located in Matsudo, Chiba that conducts pari-mutuel Keirin racing - one of Japan's four authorized "Public Sports" (kōei kyōgi) where gambling is permitted. Its Keirin identification number for betting purposes is 31# (31 sharp). Matsudo's oval is 333 meters in circumference. A typical keirin race of 2,015 meters consists of six laps around the course.

Adapted from Wikipedia (CC BY-SA). Photography via Wikimedia Commons.